OpenTechnical

OT-2026-000043206

Publication integrity record

Foam pad vacuum gripper, plant vacuum fed, sustained blow-off after set-down

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000043206) never changes.

Identity and time

Publication numberOT-2026-000043206 · never reused
Internal UUID01a0ae7b-327c-79b8-8325-bd1adddde0c2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043206
StatusPUBLIC

Content hashes

Canonical text4a7c550bc107086536832891074c10415d6a7d44ce304ff75b34f5b2227c561f
Markdown485f71cf885a757ea3f906a55d8137339885d3feb6df01cbc0fb7ea43a42b95c
PDF
Publication page21e94727626b85480005be187017b068e188f8b497384a9970f093a5a88c7346
Manifestcb0e58b567fa34f285c4656915e97bb5fecc5496dda6cfe8fd0396777dbfe487

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signature3peoG/awTMR2N2iavFXTb4iOo6t+/xETl43ZuObjaC+AUR2GREr/tvWg5KH/Veo2B4oJMr86wPymz09EhIYeCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:13:39.965666ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043206
observed 21e94727626b85480005be187017b068...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:39.946836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043206/manifest.json
observed cb0e58b567fa34f285c4656915e97bb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:39.927060ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043206/publication.md
observed 485f71cf885a757ea3f906a55d813733...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:39.908501ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043206/publication.txt
observed 4a7c550bc107086536832891074c1041...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.